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(Model) I G. M. H'ATHAWAY & B. S. TAYLOR.

I Permutation Lock. No.242,l 99.

Patented y 31, I881.

N. PETERS. WWI-WWI. Wahmflon. D, C.

. WITNESSES ATTORNEY UNITED STATES PATENT OFFICE.

GEORGE M ATHAWAY AND BENJAMIN s. TAYLOR, or JERSEY CITY, N. J.

PERMUTATlON-LOCK.

SPECIFICATION forming part of Letters Patent No. 242,199, dated May 31, 1881.

Application filed February 11, 1881.

To all whom it may concern Be it known that we, GEORGE M. HA'IHA- WAY and BENJAMIN S. TAYLOR, citizens of the United States, residing at Jersey Gity, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Permutation-Locks; and we do hereby declare the following to be a full, clear, and

exact description of the invention, such as will i as will be more fully hereinafter set forth, and

specifically pointed out in the claims.

The object of the invention is to simplify the construction and improve the efficiency'of permutation-locks in their adaptation for useful service in the various positions inwhich it may be desirable to employ them.

For convenience, we will describe the invention as applied to a trunk, chest, or other, article in which the top carrying the hasp is lifted up; but it will be understood that the device is equally applicable and serviceable in other locations and relations.

In carrying out our invention we secure to the body of the trunk or stationary portion an ornamental frame, from a cross-barof which arises a rigid keeper-hook, said frame. being, cut away to correspond with the ornamental conformation of the free end of the hasp. The hasp is pivoted within a frame, of similar outward appearance to the keeper-frame, and is held out of contact with the keeper, when not in a locked position, by the constant force of a spiral spring. The hasp isprovided with two cavities upon the under side, one of which contains the lock mechanism, the other being adapted to receive the keeper-hook, and has an abrupt right angled surface, which corresponds with andabnts against a similar bearing upon the keeper when the hasp is in a locked position.

(ModeL) Through an aperture in the hasp, upon which is formed a sleeve projecting inward, operates a shank having a rectangular extremity, upon which is secured an operating-disk having a projecting pin upon the under side, and a recess upon its periphery, having one abrupt side and an incline over which the lockingpawl rides uselessly when the shank is turned in onedirection. 'The'pin upon the under side of this operating-disk serves to rotate a series of reversible disks, having similar pins upon each side upon the same annular line, in either direction, until the three-sided recess in the periphery of each disk registers with the locking-pawl. This series of disks operates over the hasp-sleeve, and the operating-shank is secured rigidly to a semicircular plate, to which is hinged a similar plate, which is capable of being forced outward at right angles with the plane of the hasp, and serves as a handle in the manipulation of the bolt, and may be closed down upon a plane with its fellow within a circular recess in the hasp, the circular area adjacent to the edge of which is provided with proper figures or the like, adapted to guide the operator in locating the combination.

A bifurcated lug, rigid upon the under side of the hasp within the lock-chamber, embraces and holds rigidly a single spring, which is divided into several arms at one extremity, each arm being adapted to bear upon one of the series of disks and frictionally control said disk, The

other extremity, being curved, bears against a shoulder upon the locking-pawl, and serves not only to control the pawl with a constant force, but also to-hold the bolt in a locked position until the force is overcome by the manipulation of the shank and disks. The lockingpawl is pivoted upon an arm of the lockingbolt, and a recess in said arm receives the transverse arm of the pawl when the combination is off.

In carrying out our invention we employ the mechanism illustrated in the accompanying drawings, which form apart of this specification, and in which- Figure 1 is a bottom-plan view; Fig. 2, a central longitudinal section through the line a: 00, Fig. 3; Fig. 3, a top-plan view; Fig. 4, a detail view of the shank and its connections detached;

Fig. 5, a detail view of the bolt and pawl in reversed position; Fig. 6, a detail view of the spring, and Fig. 7 a view of the operating and of one of the reversible disks.

Referring to the drawings, A represents the keeper-plate, ornamented or otherwise, having a recessed portion, a, which receives the free end I) of the hasp B, and a cross-bar or plate, a, from which arises a keeper-hook, A, having an abrupt side, a The hasp B is pivoted at bin a frame, B, and a spiral spring, B socketed in the trnnk-frameand bearing against the hasp, serves to hold the hasp away from the keeper when the bolt is not in operation.

The hasp is provided with two cavities upon the under side, one of which I will designate as the lock-chamber a", and the other as the keepcr-chambcr x. The chamber as has an abrupt or rightanglod side, .1 to correspond with the similar side, c of the keeper, and the continuation of this chamber in one dirertion furnishes the gnidewa-y in which the lock-bolt traverses.

Formed upon the under side of the hasp is a sleeve, 0, around which operate reversible disks 1), having three-sided recesses (I in their peripheries, and differentially-arranged pins (1, projecting from either side of each dish. These disks are operated in either direction by an operating-disk, I), having apin, (2 upon the under side, upon the same annular line as the several pins d, and also having an oblique or inclined recess, (1", over which thelocking-pawl rides uselessly when the shank E is turned in one direction. The shank E has a square or other rectangular tenon, 0, upon the inner end, which fits within a corresponding aperture, 0, in the center of the disk D, and the disk D is held rigidly thereon by means of the screw (2 The shank E operates within the sleeve 0, through which itprojects, and is secured upon its outer extremity rigidly upon a semicircular plate, F, hinged to which, atf, isa semicircular plate, F, which may be raised at right angles to the plane of the hasp and used as a lever or knob, by which the shank and disk may be manipulated or pressed down until it rests upon a plane with its fellow, F, and both are received within a circular recess, G, formed within the hasp, and the outer surface flush with the surrounding circular surface H, which is provided with figures or other designating marks, by which the operator locates the combination.

A bifurcated lug, I, formed upon the under side of the haspB within the lock-chamber .1', receives and rigidly embraces a flat spring, J, of steel, one extremity of which is divided into as many sprin g-arms j as there are reversible disks D, which arms hold the said disks in fixed position by friction until that friction is overcome by the manipulation of theshank, and the other extremity, j, is curved and rests against a shoulder, is, upon the locking-p awl K, pivoted at k to the arm L of the locking-bolt L. The pawl Khas a transverse arm, K,.which operates in the recesses dd when the combination is on, and which recedes into a recess, I, in the arm L when the combination is off. It will thus he observed that single spring J not only controls each disk independently, but that it holds the pawl within the recesses d d, and also exerts its constant force to hold the loclebolt in lockin g contact with the keeper.

When the hinged semicircular plate F is closed down the device has a very attractive appearance, and leaves no projecting knob or shank end.

The device does away with many of the elements and complications heretofore employed in this art, and serves the desired purpose cfliciently.

What we claim as new is- 1. Thespring-hasphavinglock'chamber and keeper-chamber, as shown, combined with a. permutation-lock and a keeper, as and for the purpose set forth.

2. The hasp B, having sleeve (J, and circular recess G, surrounded by the surface H, having figures thereon, combined with the shank E, plate F, hinged plate F, and lock mechanism, as set forth.

3. The combination of the disks D I), having pins (1 d and recesses d (1 with the pivoted pawl K K and bolt L, having the arm L and recess 1, as and for the purposes setforth.

4. The single spring J, formed at one extremity into independent spring-arms which bear upon the disks, and the other extremity bearingagainst the shoulder kof thcpawl, combined with the disks 1), pawl K, and lock-bolt L L l, as and for the purposes set forth.

5. The combination of the hasp B, having recess G, figured surface H, and lock-chamber a, the shank E, plate F, and hinged plate F, the disks D D, having pins and recesses, the springs J, pawl K, and lock-bolt L L Z, all arranged and operating as and for the purpose set forth.

In testimony whereof we aiiix our signatures in presence of two witnesses.

GEORGE M. HATHAWAY. BENJAMIN S. TAYLOR.

Witnesses L. G. LITTLE, LELA E. HATHAWAY.

ICC 

